XenServer / Citrix — forum.xorux.com

LPAR2RRD problems post XCP‑NG 8.3 upgrade

Sergiy — Fri, 17 Oct 2025 13:23:53 +0000

Problems occurred with generating LPAR2RRD graphs after the XCP‑NG upgrade from 8.2 to 8.3.

I also updated LPAR2RRD to version 8.05

But, after run /var/lpar2rrd$ ./load_xenserver.sh command:

I have a problem:

mon:/var/lpar2rrd$ ./load_xenserver.sh

load_xenserver.sh : start

xen-xapi2json.pl : collect data from XAPI, Fri Oct 17 16:16:18 EEST 2025

data collection : done successfully, Fri Oct 17 16:16:19 2025

xen-json2rrd.pl : push data to rrd, Fri Oct 17 16:16:19 EEST 2025

RRDp version: 1.7002

RRDtool version: 1.7.2

xen-json2rrd.pl finish : status 0

xen-cleanup.pl : already ran today, skip

An error occured in lpar2rrd, check /var/lpar2rrd/logs/error.log-xen and output of load.sh

$ tail -42 /var/lpar2rrd/logs/error.log-xen

XML parsing error:

not well-formed (invalid token) at line 1, column 0, byte 0 at /usr/lib/x86_64-linux-gnu/perl5/5.36/XML/Parser.pm line 187.

XML::Simple called at /var/lpar2rrd/bin/xen-xapi2json.pl line 152.

XML parsing error. Trying to recover XML with xmllint at /var/lpar2rrd/bin/xen-xapi2json.pl line 155.

/var/lpar2rrd/data/XEN_iostats/xml/rrd_updates_xen05_1760705779.xml:1: parser error : Start tag expected, '<' not found

{"meta":{"start":"1760705820","step":"60","end":"1760706960","rows":"20","column

Fri Oct 17 16:16:19 2025: XML parsing error:

no element found at line 2, column 0, byte 22 at /usr/lib/x86_64-linux-gnu/perl5/5.36/XML/Parser.pm line 187.

XML::Simple called at /var/lpar2rrd/bin/xen-xapi2json.pl line 159.

/var/lpar2rrd/bin/xen-xapi2json.pl:163 file: /var/lpar2rrd/data/XEN_iostats/xml/rrd_updates_xen05_1760705779.xml at /var/lpar2rrd/bin/xen-xapi2json.pl line 163.

XML parsing error: File: /var/lpar2rrd/data/XEN_iostats/xml/rrd_updates_xen05_1760705779.xml at /var/lpar2rrd/bin/xen-xapi2json.pl line 164.

Fri Oct 17 16:16:19 2025: error while connecting to xen05, error: error: invalid XML

: /var/lpar2rrd/bin/xen-xapi2json.pl:75 at /var/lpar2rrd/bin/xen-xapi2json.pl line 75.

XML parsing error:

not well-formed (invalid token) at line 1, column 0, byte 0 at /usr/lib/x86_64-linux-gnu/perl5/5.36/XML/Parser.pm line 187.

XML::Simple called at /var/lpar2rrd/bin/xen-xapi2json.pl line 152.

XML parsing error. Trying to recover XML with xmllint at /var/lpar2rrd/bin/xen-xapi2json.pl line 155.

/var/lpar2rrd/data/XEN_iostats/xml/rrd_updates_xen06_1760705779.xml:1: parser error : Start tag expected, '<' not found

{"meta":{"start":"1760705820","step":"60","end":"1760706960","rows":"20","column

Fri Oct 17 16:16:19 2025: XML parsing error:

no element found at line 2, column 0, byte 22 at /usr/lib/x86_64-linux-gnu/perl5/5.36/XML/Parser.pm line 187.

XML::Simple called at /var/lpar2rrd/bin/xen-xapi2json.pl line 159.

/var/lpar2rrd/bin/xen-xapi2json.pl:163 file: /var/lpar2rrd/data/XEN_iostats/xml/rrd_updates_xen07_1760705779.xml at /var/lpar2rrd/bin/xen-xapi2json.pl line 163.

XML parsing error: File: /var/lpar2rrd/data/XEN_iostats/xml/rrd_updates_xen07_1760705779.xml at /var/lpar2rrd/bin/xen-xapi2json.pl line 164.

Fri Oct 17 16:16:19 2025: error while connecting to xen07, error: error: invalid XML

: /var/lpar2rrd/bin/xen-xapi2json.pl:75 at /var/lpar2rrd/bin/xen-xapi2json.pl line 75.

date end all : Fri Oct 17 16:16:19 EEST 2025

Does anyone know anything about this?

Missing XenServer menu

nagyd — Thu, 23 Sep 2021 13:48:32 +0000

Hello,

We started to test LPAR2RRD.

We would like to monitorize our VMware and Citrix Xen Server (version 8.2.0) systems.

In the part of VMware, the datas appeard. Everything works fine in LPAR2RRD,

but unfortunately the Xen Server menu did not appear, although we set the connection in the LPAR2RRD.

Here is the connection test: (Xen Server)

API host network connection: TCP connection to x.x.x.x:443 is OK.
API authorization (root): OK

SSH network connection: TCP connection to x.x.x.x:22 is OK.
SSH authorization: OK

Everything seems ok.

Although we waited one day, but the menu did not appear.

We installed LPAR2RRD from Xorux-7.20.ovf to VMware (package type: VMware)

Could you help us to find the solution?
Thank you!

Problems - load_xenserver.sh - XenServer

ilazaro — Mon, 07 Jun 2021 16:11:23 +0000

Hi good morning

I am having problems loading Xenserver

Are you aware of this error?

------------------------------------------------------------------------

[lpar2rrd@xorux ~]$ /home/lpar2rrd/lpar2rrd/load_xenserver.sh

Image environment is set

load_xenserver.sh : start

xen-xapi2json.pl : collect data from XAPI, Mon Jun 7 12:37:46 -03 2021

xen-json2rrd.pl : push data to rrd, Mon Jun 7 12:52:46 -03 2021

RRDp version: 1.7001

RRDtool version: 1.7.1

Software error:

Can't use string ("1") as a SCALAR ref while "strict refs" in use at /home/lpar2rrd/lpar2rrd/bin/XenServerLoadDataModule.pm line 171.

For help, please send mail to this site's webmaster, giving this error message

and the time and date of the error.

xen-json2rrd.pl finish : status 255

xen-cleanup.pl : already ran today, skip

/home/lpar2rrd/lpar2rrd/load_xenserver.sh: line 167: 30699 Alarm clock wait_time $timeout

An error occured in lpar2rrd, check /home/lpar2rrd/lpar2rrd/logs/error.log-xen and output of load.sh

$ tail -2256 /home/lpar2rrd/lpar2rrd/logs/error.log-xen

XenServer XAPI2JSON: 0 timeouted.

[Mon Jun 7 12:56:49 2021] xen-json2rrd.pl: Use of uninitialized value $RRDp::error_mode in string eq at /usr/lib64/perl5/vendor_perl/RRDp.pm line 168.

[Mon Jun 7 12:56:49 2021] xen-json2rrd.pl: Mon Jun 7 12:56:49 2021: Failed during read last time /home/lpar2rrd/lpar2rrd/data/XEN/88e20c84-8636-42cb-b59b-cd66f0f2a71c/disk-2e15bfc9.rrd: ERROR: mmaping file '/home/lpar2rrd/lpar2rrd/data/XEN/88e20c84-8636-42cb-b59b-cd66f0f2a71c/disk-2e15bfc9.rrd': Invalid argument at /home/lpar2rrd/lpar2rrd/bin/Xorux_lib.pm line 198.

[Mon Jun 7 12:56:49 2021] xen-json2rrd.pl: /home/lpar2rrd/lpar2rrd/bin/Xorux_lib.pm:202 at /home/lpar2rrd/lpar2rrd/bin/Xorux_lib.pm line 202.

[Mon Jun 7 12:56:49 2021] xen-json2rrd.pl: Can't use string ("1") as a SCALAR ref while "strict refs" in use at /home/lpar2rrd/lpar2rrd/bin/XenServerLoadDataModule.pm line 171.

[Mon Jun 7 13:05:41 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:05:48 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:05:49 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:05:50 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:05:52 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:05:54 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:05:57 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:06:01 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:06:04 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:06:05 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

[Mon Jun 7 13:06:09 2021] xen-json2db.pl: Use of uninitialized value in concatenation (.) or string at /home/lpar2rrd/lpar2rrd/bin/SQLiteDataWrapper.pm line 154.

Thanks!!!

Old Hosts in Menu - New Host not appearing

siancathy92 — Mon, 22 Mar 2021 16:55:43 +0000

Good Afternoon,,

Originally added a host ending in IP .20 which belonged to pool XAD_DC2. I removed this host from the GUI config but it is still displaying in the menu.

I have now configured a new host ending in .52 which has passed all the setup tests for SSH and HTTPS but it is not appearing in the menu

Many thanks

Siân

Missing hosts in menu

danielpogac — Sat, 20 Feb 2021 19:08:13 +0000

Hello.

I have issue with Lpar2RRD and Citrix Xenserver. I have added to LPAR2RRD 22 hosts in 4 pools, but in menu i see only 2 pools and hosts under this pools so 11 hosts.
I checked some logs and i was not able to identify problem.
In ~/lpar2rrd/data/XEN i see 22 host, also in ~/lpar2rrd/data/XEN_VMs i see all VMs. ~/lpar2rrd/data/XEN_iostats/json have also after each download data from 22 host.
I see that missing hosts are in ~/lpar2rrd/data/XEN_iostats/metadata and ~/lpar2rrd/data/XEN_iostats/config.json. In this folder and file i see only 11 hosts from 2 pools that is present in menu.

Can someone help me?
Thanks.

XenServer XAPI2JSON: 0 timeouted - lpar2rrd-6.20

ilazaro — Fri, 28 Aug 2020 18:46:43 +0000

Good afternoon,

I am having problems with Xen Server, in other versions it worked correctly. When installing 6.20 it was unable to load data from Xen Server.

[lpar2rrd@lpar2rrd~]$ /home/lpar2rrd/lpar2rrd/load_xenserver.sh

load_xenserver.sh : start

xen-xapi2json.pl : collect data from XAPI, Fri Aug 28 15:21:13 -03 2020

xen-json2rrd.pl : push data to rrd, Fri Aug 28 15:36:13 -03 2020

RRDp version: 1.4008

RRDtool version: 1.4.8

xen-json2rrd.pl finish : status 0

xen-cleanup.pl : already ran today, skip

/home/lpar2rrd/lpar2rrd/load_xenserver.sh: line 167: 30318 Alarm clock wait_time $timeout

An error occured in lpar2rrd, check /home/lpar2rrd/lpar2rrd/logs/error.log-xen and output of load.sh

$ tail -1 /home/lpar2rrd/lpar2rrd/logs/error.log-xen

XenServer XAPI2JSON: 0 timeouted.

date end all : Fri Aug 28 15:36:14 -03 2020

[lpar2rrd@lpar2rrd~]$

Connection checks are ok

Any idea what the problem may be?

undefined value as an ARRAY

danielpogac — Thu, 16 Apr 2020 14:30:42 +0000

Hi there.

I implemented lpar2rrd appliance to monitor our Citrix XenServer infrasturture. But ihave problem that ther is no data in Web GUI. In error.log-xen i have repeating those messages. Can anybody know what to do with it ?

XenServer XAPI2JSON: 0 timeouted.

XenServer XAPI2JSON: 0 timeouted.

Can't use an undefined value as an ARRAY reference at /home/lpar2rrd/lpar2rrd/bin/xen-json2rrd.pl line 76.

error: 500 Can't connect to XXXX:80 (Connection refused) (443 is set)

stator — Thu, 17 Oct 2019 13:46:46 +0000

Hello,

I have set my lpar2rrd to use API port 443 / HTTPS
But I get this error:

$ /home/lpar2rrd/lpar2rrd/load_xenserver.sh

Image environment is set

load_xenserver.sh : start

xen-xapi2json.pl : collect data from XAPI, Thu Oct 17 15:39:01 CEST 2019

xen-json2rrd.pl : push data to rrd, Thu Oct 17 15:39:01 CEST 2019

RRDp version: 1.4008

RRDtool version: 1.4.8

xen-json2rrd.pl finish : status 0

xen-cleanup.pl : already ran today, skip

An error occured in lpar2rrd, check /home/lpar2rrd/lpar2rrd/logs/error.log-xen and output of load.sh

$ tail -1 /home/lpar2rrd/lpar2rrd/logs/error.log-xen

error: 500 Can't connect to XXX:80 (Connection refused)

date end all : Thu Oct 17 15:39:01 CEST 2019

Settings:

"platforms" : {

"XenServer" : {

"order" : 3,

"aliases" : {

"hopharm2" : {

"proto" : "https",

"username" : "lpar2rrd",

"host" : "1XXX",

"created" : "2019-10-17T13:27:43Z",

"ssh_port" : "22",

"password" : "XXX",

"auth_ssh" : true,

"api_port" : "443",

"updated" : "2019-10-17T13:29:51Z",

"auth_api" : true,

"ssh_key_id" : "/home/lpar2rrd/.ssh/id_dsa"

}

"ssh" : true,

"api" : true

Web Check:

API host network connection: TCP connection to XXX:443 is OK.

API authorization: OK

SSH network connection: TCP connection to XXX:22 is OK.

SSH authorization: OK

Lpar2rrd version is 6.10 (appliance)

Do I really need port 80 ? (I have firewall active on this port) ?

error in output of script load_xenserver.sh

wcovre — Wed, 11 Sep 2019 21:27:28 +0000

I get the message below in the log file and lpar2rrd does not work for XenServer.

XenServer XAPI2JSON: 0 timeouted.

Can someone help me?

How set host connectivity? XenServer, RBAC&AD

Alex — Wed, 17 Jul 2019 07:50:13 +0000

Hi.
I can not make monitoring XenServer host. Please, help me.

XenServer 7.1.0 (RBAC & AD)
Lpar2RRD 6.02-24

It my first XenServer host to add to Lpar2RDD.

1) I make "lpar2rrd" user in AD and add it to Xen host, and set rights ReadOnly (RBAC & AD)
in this case i can not link by ssh

2) I make on Xen host local user "lpar2rrd", and i can link to host by ssh. But this user can not see in Users list XenServer and can not setting to it ReadOnly role.

3) I add config for Xen host in Lpar2RRD Web for user "lpar2rrd", test HTTPS Err, HTTP Ok, SSH (by Lpar2RRD host) Ok.
in logs i read errors

4) I change config for Xen host in Lpar2RRD Web for user "root", test HTTP Error, SSH (by Lpar2RRD host by lpar2rrd user) Ok.
in logs no read errors, but no info at Xen host in Web GUI.

Please, say more detail, what i need do if my XenServer uses RBAC & AD.